[jet]

It all stems from Meghan freezing out both her mother Doria's side and her fathers side of the family once she had some fame and was seemingly ashamed of them all. And when she married Harry, Doria was the only member of her side of quite a large family who was invited.
Instead there were many celebrities there who had never even met Meghan and some who had never met Harry either. It was all shallow showboating.

Meghan isn't little Miss Innocent and her extended family all scum. IMO It starts with Meghan being an arrogant, manipulative ruthless snob with a cold heart as she still is to this day.